Great book for people who feel sad or depressed.
Don't Be Sad by Aaidh bin Abdullah al-Qarni. Please read it - it is so helpful!
Salamu alaikum,
I have this one!! It's very good, alhamdulillah, and you can just pick it up and read it whenever you want because its in small sections, which is especially good for me as i'm not very good with reading books, I usually start tham and never finish.

May Allah reward everyone for their recommendations



Salam.